125 lines
2.7 KiB
C++
125 lines
2.7 KiB
C++
|
#ifndef STAR_PARTICLE_HPP
|
||
|
|
#define STAR_PARTICLE_HPP
|
||
|
|
|
||
|
|
#include "StarJson.hpp"
|
||
|
|
#include "StarColor.hpp"
|
||
|
|
#include "StarBiMap.hpp"
|
||
|
|
#include "StarAnimation.hpp"
|
||
|
|
|
||
|
|
namespace Star {
|
||
|
|
|
||
|
|
struct Particle {
|
||
|
|
enum class Type {
|
||
|
|
// Variance is basically a null type, used only for varying other particles
|
||
|
|
// by amounts.
|
||
|
|
Variance,
|
||
|
|
|
||
|
|
Ember,
|
||
|
|
Textured,
|
||
|
|
Animated,
|
||
|
|
Streak,
|
||
|
|
Text
|
||
|
|
};
|
||
|
|
static EnumMap<Type> const TypeNames;
|
||
|
|
|
||
|
|
enum class DestructionAction {
|
||
|
|
None,
|
||
|
|
Image,
|
||
|
|
Fade,
|
||
|
|
Shrink
|
||
|
|
};
|
||
|
|
static EnumMap<DestructionAction> const DestructionActionNames;
|
||
|
|
|
||
|
|
enum class Layer {
|
||
|
|
Back,
|
||
|
|
Middle,
|
||
|
|
Front
|
||
|
|
};
|
||
|
|
static EnumMap<Layer> const LayerNames;
|
||
|
|
|
||
|
|
Particle();
|
||
|
|
// If particle is type Textured, then the image name is considered relative
|
||
|
|
// to the given asset path
|
||
|
|
explicit Particle(Json const& config, String const& assetsPath = "/");
|
||
|
|
|
||
|
|
Json toJson() const;
|
||
|
|
|
||
|
|
void translate(Vec2F const& pos);
|
||
|
|
|
||
|
|
// Updates position, velocity, rotation, and timeToLive.
|
||
|
|
void update(float dt, Vec2F const& wind = Vec2F());
|
||
|
|
|
||
|
|
bool dead() const;
|
||
|
|
|
||
|
|
// Apply random variance to this particle based on a "variance" particle that
|
||
|
|
// contains the maximum amount of variance for each field.
|
||
|
|
void applyVariance(Particle const& variance);
|
||
|
|
|
||
|
|
// Stops particle and sets time to live to 0.0 (triggering destruction)
|
||
|
|
void collide(Vec2F const& collisionPosition);
|
||
|
|
// Immediately triggers destruction of particle with / without destruction
|
||
|
|
// action
|
||
|
|
void destroy(bool withDestruction);
|
||
|
|
|
||
|
|
// Internally called by update() / collide() / destruct()
|
||
|
|
void destructionUpdate();
|
||
|
|
|
||
|
|
void initializeAnimation();
|
||
|
|
|
||
|
|
Type type;
|
||
|
|
|
||
|
|
// Defaults to 1.0, 1.0 will produce a reasonable size particle for whatever
|
||
|
|
// the type is.
|
||
|
|
float size;
|
||
|
|
float baseSize; // track the original size for shrink destruction action
|
||
|
|
|
||
|
|
// Used differently depending on the type of the particle.
|
||
|
|
String string;
|
||
|
|
|
||
|
|
Color color;
|
||
|
|
Color light;
|
||
|
|
float fade;
|
||
|
|
bool fullbright;
|
||
|
|
|
||
|
|
Vec2F position;
|
||
|
|
Vec2F velocity;
|
||
|
|
Vec2F finalVelocity;
|
||
|
|
Vec2F approach;
|
||
|
|
|
||
|
|
bool flippable;
|
||
|
|
bool flip;
|
||
|
|
|
||
|
|
float rotation;
|
||
|
|
float angularVelocity;
|
||
|
|
|
||
|
|
float length;
|
||
|
|
|
||
|
|
DestructionAction destructionAction;
|
||
|
|
String destructionImage;
|
||
|
|
float destructionTime;
|
||
|
|
|
||
|
|
float timeToLive;
|
||
|
|
Layer layer;
|
||
|
|
|
||
|
|
bool collidesForeground;
|
||
|
|
bool collidesLiquid;
|
||
|
|
bool underwaterOnly;
|
||
|
|
|
||
|
|
bool ignoreWind;
|
||
|
|
|
||
|
|
bool trail;
|
||
|
|
|
||
|
|
Maybe<Animation> animation;
|
||
|
|
String directives;
|
||
|
|
};
|
||
|
|
|
||
|
|
DataStream& operator<<(DataStream& ds, Particle const& particle);
|
||
|
|
DataStream& operator>>(DataStream& ds, Particle& particle);
|
||
|
|
|
||
|
|
typedef function<Particle()> ParticleVariantCreator;
|
||
|
|
ParticleVariantCreator makeParticleVariantCreator(Particle particle, Particle variance);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|